Go Back   EcoModder Forum > EcoModding > Instrumentation > OpenGauge / MPGuino FE computer
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 02-03-2010, 09:37 AM   #1 (permalink)
EcoModding Apprentice
 
Join Date: Feb 2010
Location: Howells Ne
Posts: 125

Supra - '88 Toyota Supra

superhawk - '98 Honda superhawk
Last 3: 27.62 mpg (US)

Lesabre - '96 buick lesabre
3800
90 day: 25.85 mpg (US)

Saturn - '97 Saturn Sc2
Team Saturn
Sports Cars
90 day: 39.12 mpg (US)

Truk - '99 Ford F150
Team Ford
Pickups
90 day: 23.43 mpg (US)
Thanks: 17
Thanked 7 Times in 6 Posts
92 caprice tbi

Hi I have a 92 chevy caprice and would like to get a mpguino but i read that they have problems with late 80s and early 90s gm tbi cars is there a fix?

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 02-11-2010, 10:38 PM   #2 (permalink)
EcoModding Lurker
 
Join Date: Feb 2010
Location: Fremont, CA
Posts: 2
Thanks: 0
Thanked 1 Time in 1 Post
TBI engine V8 with mpguino gauge remedy ideas

I have TBI too and I have the same question and have not seen anyone coming up with a remedy because most people here seem to focus on smaller cars.

Therefore, I have been asking myself this question for about a year now. I believe for similar reasons, GM probably abandoned TBI in 1996 since they were required by law to have OBDII that year and one of OBDII's functions is to follow the mpgs. I've been fortunate to find the G-Series vans made in 1996 over 8,500 lb to have TBI, but I have not been able to confirm that 100%. If these vans have TBI with OBDII, then maybe we can just convert our OBDI TBI engines to run OBDII and then buy a scanguage II? Anyways, I'm still searching and trying to find the answer.

Another idea and probably a cheaper and better alternative is to install a different fuel injection system. I know for a fact that the Tuned Port Injection, TPI, run more efficient with better fuel economy and more horsepower than the TBI anyways. Plus, the Corvettes that used TPI during the 1980s and early 1990s had mpg gauges on their instrument cluster, a confirmation that going this route has a promising possibility that the mpguino will function perfectly.

The TPI units fit perfectly on 5.0 and 5.7 Chevy V8 engines. I wonder if anybody has done a mpguino gauge on a TPI engine now?

I posted two pictures a TBI engine and TPI engine to compare.

By the way, I believe I may go with converting my car to a TPI and add a 6 speed manual transmission for sake of saving more fuel with higher gears and less parasitic demand on the engine.

But before doing so, I will explore other ideas on different drive-trains that yield the best mpg vs costs to make the conversion. I have been researching the 2.4 Ecotec 4 cylinder engines and Mercedes Diesel 5 cylinder engines that are possible to fit inside a Buick Roadmaster Estate Wagon.
Attached Thumbnails
Click image for larger version

Name:	tbi engine naked.jpg
Views:	89
Size:	35.9 KB
ID:	5596   Click image for larger version

Name:	tpi unit.jpg
Views:	102
Size:	34.0 KB
ID:	5597  
  Reply With Quote
The Following User Says Thank You to 91 Buick Roadmaster Wagon For This Useful Post:
mazdamx640 (02-13-2010)
Old 03-23-2010, 07:12 PM   #3 (permalink)
EcoModding Apprentice
 
Join Date: Feb 2010
Location: Howells Ne
Posts: 125

Supra - '88 Toyota Supra

superhawk - '98 Honda superhawk
Last 3: 27.62 mpg (US)

Lesabre - '96 buick lesabre
3800
90 day: 25.85 mpg (US)

Saturn - '97 Saturn Sc2
Team Saturn
Sports Cars
90 day: 39.12 mpg (US)

Truk - '99 Ford F150
Team Ford
Pickups
90 day: 23.43 mpg (US)
Thanks: 17
Thanked 7 Times in 6 Posts
I am planning on using a t56 because it has a double overdrive and a cummins 4bt that should get me atlest 32mpgs

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Just bought 92 Civic vx with bog problems jttriesch Off-Topic Tech 15 11-10-2010 03:47 PM
CNET: your '92 Civic may get far better MPG than a new car, but it still sucks! MetroMPG General Efficiency Discussion 48 06-23-2009 12:18 PM
New member, buying a 92 Civic DX, looking for opinions... exo General Efficiency Discussion 7 06-02-2009 03:06 PM
MPGuino and a 92 Geo Metro LSi Convertible drimportracing OpenGauge / MPGuino FE computer 3 12-04-2008 03:07 PM
TBI Switch? 99metro DIY / How-to 4 07-29-2008 12:44 AM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com